I'm not SILang expert, but it seems to be possible using ExtendedTranslations only.

Ah, thank's a lot! I haven't noticed that the ExtendedTranslations have been greatly improved in the last version.

Btw 1: The workaround in the FAQ concerning the ActionManager (http://www.sicomponents.com/lng_faq.html#10) works, but it has two side effect:
1. Design time customization of menus won't work
2. Strange runtime behaviour when changing menu (you have to click twice)

So better don't use this way.

Btw 2: With ExtendedTranslations even translating the captions of DevExpress Treelist columns works, which isn't possible through normal captions (the default language captions always disappear from the caption translation editor)